Product Overview

The Yokogawa NFPW442-10 serves as the primary high-capacity energy source for the STARDOM FCN (Field Control Node) Autonomous Controller and DCS architectures. This rack-mountable module converts high-voltage AC input into multiple regulated DC rails, specifically optimized to drive CPU logic, communication interfaces, and I/O modules. We supply this unit as 100% Brand New and Original, ensuring your critical infrastructure benefits from the Style S2 engineering revisions and factory-certified stability required for 24/7 industrial operations.

Part Number Breakdown: NFPW442 Series

Model NFPW442: Power supply module (220-240 V AC input)Suffix -1: Standard type with Style S1/S2 internal architectureSuffix 0: Standard basic type (No explosion protection)Style S2: Features updated internal circuitry for enhanced current handling and thermal management.

Technical Specifications

• Manufacturer: Yokogawa Electric Corporation

• Model Number: NFPW442-10 (Style S2)

• Input Voltage: 100–240 V AC (Wide range), 50/60 Hz

• Output Rail 1: 5.1 VDC at 7.8 Amps (Internal logic power)

• Output Rail 2: 24 VDC at 4 Amps (Field and I/O power)

• Total Output Power: 100 Watts

• Efficiency: ≥ 85%

• Redundancy: Supports dual redundant operation with load sharing

• Cooling Method: Natural convection (Fanless design)

• Operating Temperature: 0 to 55 °C

• Dimensions: 14.7 x 5.0 x 14.7 cm

• Weight: 0.65 kg (Net) / 1.5 kg (Shipping)

• Country of Origin: Japan

Engineering Advantages

• Dual-Rail Precision: Unlike generic power supplies, the NFPW442-10 provides a high-current 5.1 VDC rail (7.8A) specifically for STARDOM processor logic, alongside a 24 VDC rail for field instruments. This dual-output design eliminates the need for separate voltage converters within the rack.

• Active Redundancy Support: The module supports parallel redundant configurations. If one module encounters a fault, the secondary unit assumes the load instantaneously, ensuring zero interruption to the autonomous controller's logic execution.

• High-Density Thermal Performance: The fanless, natural convection cooling system prevents the intake of corrosive dust and industrial contaminants. This design solves the common industrial pain point of mechanical fan failure, significantly increasing the Mean Time Between Failures (MTBF).

• Hot-Swap Maintenance: Technicians can replace the NFPW442-10 while the system remains live (in redundant configurations). This capability removes the requirement for process shutdowns during routine power system maintenance.

• Advanced Transient Suppression: Integrated over-voltage and over-current protection circuits shield sensitive FCN processors from upstream electrical noise and AC line surges common in heavy industrial grids.

FAQs

• What is the difference between NFPW442-10 and NFPW442-51?The NFPW442-10 is the standard industrial version, whereas the -51 variant includes the ISA Standard G3 option, which provides additional conformal coating for protection against corrosive gases and extreme environmental humidity.

• Can the NFPW442-10 handle 110V AC input?While many Style S2 modules support a wide range (100-240V), the NFPW442 is specifically optimized for 220-240V AC nominal grids. Always check the module side-label before applying power to ensure your local supply matches the Suffix Code.

• Why does my system require redundant power modules?In critical process industries (Oil & Gas, Power Generation), power supply failure is the leading cause of unplanned downtime. Redundant NFPW442-10 modules ensure that a single component failure does not lead to a total process shutdown.

• Why should I only purchase Brand New units?Power supply modules contain electrolytic capacitors that age over time, even when not in use. "New Old Stock" or used units carry a significantly higher risk of failure due to capacitor drying. A 100% Brand New NFPW442-10 ensures maximum chemical life and factory-spec efficiency from the moment of installation.